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On resolution requirements for selfgravitating protoplanetary discs – a comparison of grid and SPH codes

Published online by Cambridge University Press:  19 April 2010

K. Goździewski ,
A. Niedzielski ,
J. Schneider ,
A. J. Gawryszczak ,
L. Mayer ,
A. Boley  and
E. Tasker
A. J. Gawryszczak
Affiliation:
Nicolaus Copernicus Astronomical Center, Warsaw, Poland
L. Mayer
Affiliation:
ETH Zürich, Switzerland University of Zürich, Switzerland
A. Boley
Affiliation:
University of Zürich, Switzerland
E. Tasker
Affiliation:
University of Florida, Gainesville, USA
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Abstract

The resolution criterion for self-gravity in AMR codes derived by Truelove et al.  (1997) based on the Jeans length is a very robust one and thus quite popular. We believe that for some configurations, such as self-gravitating discs, there are reasons to supplement it in order to properly resolve gravitational instabilities and clump formation processes at reasonable computational costs.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 42: Extrasolar Planets in Multi-Body Systems: Theory and Observations , 2010 , pp. 267 - 274
Copyright
© EAS, EDP Sciences, 2010

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